Keyboard layout, home row, short vowels AOEUI, concept of steno order and syllables / pap pop pep pup pip pat pot pet put pit / brief I, you

The Keyboard

Starting/ending sides
Left-right order
Think of letters as labels that represent letter-sounds



If the vowel letter in the written word appears without another vowel letter next to it, then it doesn't matter which short vowel sound it makes. The Plover key labeled with that letter is always used to stroke the word.
If the vowel sound in the written word is spelled with two or more consecutive vowel letters, then it doesn't matter what spelling is used. The Plover key whose short vowel sound matches the sound in the word is always used to stroke the word.
^^^^ i.e., when short vowel sounds is the predominant vowel sound or the only vowel sound voiced, the short vowel sound key is used even if the word is spelled with more than one consecutive vowel.  Examples:
pour

136 words written with no vowels except 110 of them contain the letter Y - maybe you learned the vowels as AEIOU and sometimes Y? 

The most frequently used letters (at any place in a word) are the vowels E, I and A.

E is the most used vowel.  In an analysis of all 240,000 entries in the Concise Oxford English Dictionary, OED editors found that the letter E appears in approximately 11% of all words in the common English vocabulary, about 6,000 more words than the runner-up letter, A.

The book Gadsby was written without using the letter E at all - over 50,000 words!

Scanned copy https://archive.org/details/Gadsby/page/n5/mode/2up

https://www.gutenberg.org/files/47342/47342-h/47342-h.htm

Sadly, the editors/publishers (Wetzel Publishing) of the 1939 edition (which is the edition found on Guttenberg) slipped in the word "the" three times and the word "officers" once, defiling the E-less work ;)